Changes in version 0.1.0                        

  - The vendored bundle's PageFillable accepts a CSS length string for
    padding and gap, such as "1rem". padding also takes one to four
    values, as a string ("0 16px") or an array ([0, 16]). A number is
    still pixels.

  - The vendored bundle's PageFillable no longer defaults padding and
    gap to 12px, matching bslib::page_fillable(). A client with no build
    step that reads it from window.bslibreact gets the theme's own
    spacing unless it passes both.

First release. The package is experimental: the three functions below
are what it exports, and their signatures may still change.

  - page_deps() renders a sample of bslib and shiny markup under a theme
    and returns the htmlDependency() objects that markup attaches, so a
    shinyreact client can be served the same CSS and JavaScript a
    matching bslib page would have attached on its own. "bootstrap" and
    "jquery" are left out, since a shiny page already carries both, and
    each remaining dependency is returned once.

  - host_input() renders a shiny input server-side into an output the
    React client displays, for the widgets that have no dedicated
    component. The output is named with a _ui suffix, which the client's
    own id has to match, and keeps rendering while hidden, as the Python
    host_input() does.

  - bslibreact_dep() returns the htmlDependency() for the vendored
    bslibreact.js bundle, for a client with no build step that reads the
    kit as window.bslibreact. Attach it after shinyreact's own
    dependency: the bundle reads window.shinyreact as it evaluates.